Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_files.c @ 26:53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Sun, 15 Dec 2002 06:25:09 +0000 |
parents | 6f58641241bb |
children | b2e039840718 |
rev | line source |
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nginx-0.0.1-2002-08-23-20:14:30 import
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2 #include <ngx_core.h> |
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3 #include <ngx_file.h> |
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5 ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset) |
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6 { |
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7 ssize_t n; |
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9 ngx_log_debug(file->log, "read: %x, %d, %qd" _ buf _ size _ offset); |
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10 |
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11 n = pread(file->fd, buf, size, offset); |
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nginx-0.0.1-2002-09-07-14:14:25 import
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13 if (n == -1) { |
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14 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, "read() failed"); |
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15 return NGX_ERROR; |
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16 } |
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17 |
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18 return n; |
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19 } |
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20 |
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21 #if 0 |
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22 |
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23 ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset) |
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24 { |
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25 if (!file->read->ready) { |
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26 |
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27 ngx_memzero(&file->iocb, sizeof(iocb)); |
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28 file->iocb.aio_fildes = file->fd; |
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29 file->iocb.aio_buf = buf; |
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30 file->iocb.aio_nbytes = size; |
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31 file->iocb.aio_offset = offset; |
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32 #if (USE_AIO_KQUEUE) |
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33 file->iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT; |
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34 file->iocb.aio_sigevent.sigev_notify_kqueue = tid->kq; |
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35 file->iocb.aio_sigevent.sigev_value = (union sigval) file; |
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36 #endif |
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37 #if (USE_AIO_SIGNAL) |
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38 file->iocb.aio_sigevent.sigev_notify = SIGEV_SIGNAL; |
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39 file->iocb.aio_sigevent.sigev_signo = NGX_SIGAIO; |
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40 #ifndef __FreeBSD__ |
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41 file->iocb.aio_sigevent.sigev_value.sival_ptr = file; |
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42 #endif |
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43 #endif |
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44 |
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45 if (aio_read(&file->iocb) == -1) { |
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46 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
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47 "aio_read() failed"); |
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48 return NGX_ERROR; |
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49 |
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50 n = aio_error(&file->iocb); |
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51 if (n == EINPROGRESS) |
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52 return NGX_AGAIN; |
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53 |
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54 if (n == -1) { |
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55 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
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56 "aio_read() failed"); |
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57 return NGX_ERROR; |
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58 } |
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59 } |
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60 |
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61 ngx_assert(file->iocb.aio_buf == buf), return NGX_ERROR, |
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62 "ngx_aio_read_file: another buffer is passed"); |
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63 |
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64 n = aio_return(&file->iocb); |
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65 if (n == -1) { |
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66 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
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67 "aio_read() failed"); |
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68 return NGX_ERROR; |
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69 } |
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70 |
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71 return n; |
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72 } |
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73 |
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74 #endif |